My friends son asked a woman here in Australia how much to make him a T Shirt quilt and she said around $1000AU
I ended up making it for him because I knew how much he wanted it , no charge. It took me at least 35 hours as I did qayg plus I then had to join each square up separately. I have made 3 of them and they all took around the 35 hour mark. Your charge to this person should probably reflect how close you are or if it us just a plain business transaction.